Sorry for offtopic here. You probably should create issue in the map thread so it can be discussed there. On the matter - afaik mappers had some sort of agreement on this.Weber wrote:
https://osu.ppy.sh/s/727908
Potential case of map plagiarism from https://osu.ppy.sh/b/1559292 "retk 2.0" diff and the top diff of the linked set between 01:38:375 - to 01:40:617.
Because the "retk 2.0" diff seems to have been uploaded sometime after the set's initial submission, it's difficult to ascertain who made this pattern first.